2010 L99 w/ Headers + 3.91s vs. 2010 L99 w/ Only Headers - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

2010BlackCamaroSS · 03-24-2022, 11:19 PM

My car: CAI, 2" TSP headers, 3" TSP exhaust, 3.91 gears, Truetrac, & DynoSteve tune.

His car: CAI, 1 7/8" TSP headers, & tune.

On the 1st pass, we both left on the light. With the 3.91s, I should have taken him off the line, but I pretty much blew the tires off and continued to spin in 2nd gear. So, we were side by side as I spun through 1st and 2nd gear, but my car started to drift. So, I got out of it, and let him go.

The second pass started just like the 1st. We left together on the light, and I spun through 1st and into 2nd gear. This time, however, the car stayed straight. As soon as I caught 3rd gear, I hooked and absolutely destroyed him. I had at least a bus and a half on him at the finish line.

To me, I think this was a decent real world test of what kind of performance gains you get from doing a 3.91 gear swap. Both cars were 2010 Camaros with the same engine and TSP headers. The only real difference was that I had 3.91 gears. If I would've been able to hook at the starting line, I would've made him look like he was driving a Prius. Also, if I had got back in it during the 1st race, I still would've beat him.

Royal Tiger · 03-25-2022, 08:27 AM

Awesome.

I also have 3.91’s. Love them.

03-24-2022, 11:19 PM	#1
2010BlackCamaroSS Drives: 2010 Camaro 2SS/RS - L99 Join Date: Jun 2021 Location: MS Posts: 128 View My Garage	2010 L99 w/ Headers + 3.91s vs. 2010 L99 w/ Only Headers My car: CAI, 2" TSP headers, 3" TSP exhaust, 3.91 gears, Truetrac, & DynoSteve tune. His car: CAI, 1 7/8" TSP headers, & tune. On the 1st pass, we both left on the light. With the 3.91s, I should have taken him off the line, but I pretty much blew the tires off and continued to spin in 2nd gear. So, we were side by side as I spun through 1st and 2nd gear, but my car started to drift. So, I got out of it, and let him go. The second pass started just like the 1st. We left together on the light, and I spun through 1st and into 2nd gear. This time, however, the car stayed straight. As soon as I caught 3rd gear, I hooked and absolutely destroyed him. I had at least a bus and a half on him at the finish line. To me, I think this was a decent real world test of what kind of performance gains you get from doing a 3.91 gear swap. Both cars were 2010 Camaros with the same engine and TSP headers. The only real difference was that I had 3.91 gears. If I would've been able to hook at the starting line, I would've made him look like he was driving a Prius. Also, if I had got back in it during the 1st race, I still would've beat him.

03-25-2022, 08:27 AM	#2
Royal Tiger Account Suspended Drives: 2013 2SS/RS Convertible Join Date: Apr 2016 Location: Lehigh Valley, PA Posts: 3,873	Awesome. I also have 3.91’s. Love them.